Ultrasonic metal forming
processing
K.F. Graff EWI, Columbus, OH, USA
Abstract
Metal forming is a primary manufacturing process that includes drawing, forging, rolling, and bending. Ultrasonic metal forming is the application of ultrasonic vibrations to these processes to enhance performance through increased production speeds, less tool wear, reduced forming forces, and better surface finish. The field was initiated with a 1955 note by Blaha and Langenecker that reported reduced yield stress with application of ultrasound, resulting in lines of development active to the present day. Many metal forming processes have been investigated for application of power ultrasonics, including wire and tube drawing, deep drawing, bending, forging, ...
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